OpenTechnical

OT-2026-000020195

Publication integrity record

Foam pad vacuum gripper, four zone face, plant vacuum fed, pulsed blow-off before set-down, on a tool changer

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000020195) never changes.

Identity and time

Publication numberOT-2026-000020195 · never reused
Internal UUID01a0ae6f-4379-7210-bd62-42e3f285e144 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:22.507199Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000020195
StatusPUBLIC

Content hashes

Canonical text0df338af56eaed06f2c6a878521c35a8368011aea3becfd1b79a3f44b03e213d
Markdownac5e87948f31dc0511ee9f07345319f05dcc512f48cbfc55137362099f2b704b
PDF
Publication page192e043f9c8e1d7e6a7782b9012882546ff60b97398e5837ac3e5d41f652ed04
Manifest17bfd5e3181dc15ebb1d81b5d9b43b97ab9e21a7bd1fd9b2a7e76f59b527c1a9

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignatureYv+eo7zG6TOQc+mBWgYOhwuK11XJklc6ueOMwKs0xx/sI8dFW6Nxh4TU5xvjKBibbEKq9ZgYruf1SpiO6UTpDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:56:31.553987ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020195
observed 192e043f9c8e1d7e6a7782b901288254...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:31.536391ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020195/manifest.json
observed 17bfd5e3181dc15ebb1d81b5d9b43b97...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:31.518086ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020195/publication.md
observed ac5e87948f31dc0511ee9f07345319f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:56:31.500310ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000020195/publication.txt
observed 0df338af56eaed06f2c6a878521c35a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.